lukechilds
/
SuperNET
mirror of https://github.com/lukechilds/SuperNET.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

Test

dev
jl777 7 years ago
parent
3cd1e71107
commit
7522c812da
1 changed files with 34 additions and 13 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 47
      iguana/exchanges/LP_privkey.c

47
iguana/exchanges/LP_privkey.c
View File

@ -468,7 +468,7 @@ uint8_t *JPG_decrypt(int32_t *indp,int32_t *recvlenp,uint8_t space[JPG_ENCRYPTED
// from https://github.com/owencm/C-Steganography-Framework
#include "../../crypto777/jpeg/cdjpeg.h" // Common decls for compressing and decompressing jpegs
int32_t LP_jpg_process(int32_t *capacityp,char *inputfname,char *outputfname,uint8_t *decoded,uint8_t *origdata,int32_t required,int32_t power2,char *password)
int32_t LP_jpg_process(int32_t *capacityp,char *inputfname,char *outputfname,uint8_t *decoded,uint8_t *origdata,int32_t origrequired,int32_t power2,char *password)
{
struct jpeg_decompress_struct inputinfo;
struct jpeg_compress_struct outputinfo;
@ -477,31 +477,37 @@ int32_t LP_jpg_process(int32_t *capacityp,char *inputfname,char *outputfname,uin
JDIMENSION i,compnum,rownum,blocknum;
JBLOCKARRAY coef_buffers[MAX_COMPONENTS];
JBLOCKARRAY row_ptrs[MAX_COMPONENTS];
bits256 privkey; FILE *input_file,*output_file; int32_t checkind,recvlen,msglen,val,modified,emit,totalrows,limit,ind=0; uint8_t *decrypted,*space,*data=0;
bits256 privkey; FILE *input_file,*output_file; int32_t checkind,recvlen,msglen,val,modified,emit,totalrows,limit,required,ind=0; uint8_t *decrypted,*space,*data=0;
if ((input_file = fopen(inputfname, READ_BINARY)) == NULL)
{
fprintf(stderr, "Can't open %s\n", inputfname);
//exit(EXIT_FAILURE);
return(-1);
}
if ( origdata != 0 && password != 0 && password[0] != 0 )
required = origrequired;
memset(privkey.bytes,0,sizeof(privkey));
if ( password != 0 && password[0] != 0 )
{
if ( required/8 > JPG_ENCRYPTED_MAXSIZE-60 )
return(-1);
data = calloc(1,required/8+512);
vcalc_sha256(0,privkey.bytes,(uint8_t *)password,(int32_t)strlen(password));
msglen = JPG_encrypt(ind,data,origdata,required/8,privkey);
if ( origdata != 0 )
{
space = calloc(1,required/8+512);
if ( (decrypted= JPG_decrypt(&checkind,&recvlen,space,data,privkey)) == 0 || recvlen != required/8 || checkind != ind || memcmp(decrypted,origdata,required/8) != 0 )
printf("decryption error: checkind.%d vs %d, recvlen.%d vs %d, decrypted.%p\n",checkind,ind,recvlen,required/8,decrypted);
else
msglen = JPG_encrypt(ind,data,origdata,required/8,privkey);
required = msglen * 8;
{
for (i=0; i<recvlen; i++)
printf("%02x",decrypted[i]);
printf(" decrypted.%d\n",recvlen);
space = calloc(1,JPG_ENCRYPTED_MAXSIZE);
if ( (decrypted= JPG_decrypt(&checkind,&recvlen,space,data,privkey)) == 0 || recvlen != required/8 || checkind != ind || memcmp(decrypted,origdata,required/8) != 0 )
printf("decryption error: checkind.%d vs %d, recvlen.%d vs %d, decrypted.%p\n",checkind,ind,recvlen,required/8,decrypted);
else
{
for (i=0; i<recvlen; i++)
printf("%02x",decrypted[i]);
printf(" decrypted.%d\n",recvlen);
}
free(space);
}
free(space);
}
} else data = origdata;
if ( power2 < 0 || power2 > 30 )
@ -560,7 +566,20 @@ int32_t LP_jpg_process(int32_t *capacityp,char *inputfname,char *outputfname,uin
}
}
}
//printf(" capacity %d required.%d power2.%d limit.%d\n",*capacityp,required,power2,limit);
if ( password != 0 && password[0] != 0 )
{
space = calloc(1,JPG_ENCRYPTED_MAXSIZE);
if ( (decrypted= JPG_decrypt(&checkind,&recvlen,space,decoded,privkey)) == 0 || recvlen != required/8 || checkind != ind || memcmp(decrypted,origdata,required/8) != 0 )
printf("decryption error: checkind.%d vs %d, recvlen.%d vs %d, decrypted.%p\n",checkind,ind,recvlen,required/8,decrypted);
else
{
for (i=0; i<recvlen; i++)
printf("%02x",decrypted[i]);
printf(" decrypted.%d\n",recvlen);
}
free(space);
}
//printf(" capacity %d required.%d power2.%d limit.%d\n",*capacityp,required,power2,limit);
if ( *capacityp > required && outputfname != 0 && outputfname[0] != 0 )
{
if ((output_file = fopen(outputfname, WRITE_BINARY)) == NULL) {
@ -631,6 +650,8 @@ int32_t LP_jpg_process(int32_t *capacityp,char *inputfname,char *outputfname,uin
free(block_row_size);
free(width_in_blocks);
free(height_in_blocks);
if ( data != origdata )
free(data);
return(modified);
}

Write Preview
Loading…
Cancel
Save